id:A119134 - OEIS Search Results

Search: id:A119134

Displaying 1-1 of 1 results found.

page 1

A119134

Triangular numbers composed of digits {1,5,7}.

+0
3

1, 15, 55, 171, 1711, 5151, 11175, 551775, 1777555, 17555775, 51151555, 115117551, 1115171151, 151577151715, 171115717515, 551171777775, 1175175575155, 1577775175717755, 5511171777517575, 7571117555155155 (list; graph; listen)

	OFFSET	`1,2`
	LINKS	`G. Resta, Tridigital Triangular Numbers`
	CROSSREFS	`Cf. A000217, A119135. See A119033 for a table of cross-references.` `Sequence in context: A043192 A043972 A062025 this_sequence A119658 A072745 A080698` `Adjacent sequences: A119131 A119132 A119133 this_sequence A119135 A119136 A119137`
	KEYWORD	`nonn,base`
	AUTHOR	`Giovanni Resta (g.resta(AT)iit.cnr.it), May 10 2006`

page 1

Search completed in 0.002 seconds

Last modified August 29 17:54 EDT 2008. Contains 143238 sequences.

AT&T Labs Research